Bryant says:The MERV 11 media filter efficiently traps unwanted airborne particles while allowing free flow of cleaner air to maintain your system's energy efficiency. Because it helps keep your system's components cleaner, you can expect less wear and tear for longer life. Best of all, it's offered to you by Bryant, the world's most trusted name in home comfort products.Your home is where you go to relax. However, pollen and mold spores can enter through open doors and windows, bacteria and viruses can spread between family and friends, fine dust particles get kicked up from floors and furniture, and dander and hair fall from pets. Bryant's media filter helps clear the air by trapping many of these particles and preventing them from re-entering your living areas. It's an efficient and economical way to protect your home furnishings, allow your system to run more efficiently, and enjoy cleaner indoor air.